CODEWITHSUNDEEP
javascriptnode.jshashhmac
user1031947
user1031947

Reputation: 6664

Convert PHP hash_hmac(sha512) to NodeJS

I am porting a php script to node, and I don't know much about encryption.

The php script uses this function:

hash_hmac('sha512', text, key);

So, I need to implement a function in Node js for returning a keyed hash using the hmac method (SHA512).

From what I can see, node has this functionality built in via the crypto module (http://nodejs.org/docs/latest/api/crypto.html#crypto_crypto) -- But I unclear how to reproduce this function.

Any help would be appreciated.

Thanks,

Upvotes: 7

Views: 4368

Answers (1)

Jacob Parker
Jacob Parker

Reputation: 2556

Yes, use the crypto library.

var hash = crypto.createHmac('sha512', key);
hash.update(text);
var hashed_data = hash.digest();

More details (e.g. arguments to digest to control the output encoding from hash.digest) are at the link you provided.

As Nick points out, you will need to do this entire process each time you want to encrypt a new string (i.e. create a new hash object via crypto.createHmac.)

Upvotes: 9

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